Home / 875,892.09-1,208,847.06-513,458.40

Finding the Fourth Proportional to 875,892.09, 1,208,847.06 and 513,458.40

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Solution

The fourth proportional to 875,892.09, 1,208,847.06 and 513,458.40 is: 708,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,892.09 : 1,208,847.06 = 513,458.40 : x
  2. Step 2: Convert to fraction form
    875,892.09/1,208,847.06 = 513,458.40/x
  3. Step 3: Cross multiply
    875,892.09x = 1,208,847.06 × 513,458.40
  4. Step 4: Simplify right side
    875,892.09x = 620,692,677,272.30
  5. Step 5: Solve for x
    x = 620,692,677,272.30/875,892.09
  6. Step 6: Final answer
    x = 708,640.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.